package com.myown.controller;

import com.myown.pojo.User;
import com.myown.service.IGoodsService;
import com.myown.service.IUserService;
import com.myown.vo.DetailVo;
import com.myown.vo.GoodsVo;
import com.myown.vo.RespBean;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.ValueOperations;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.CookieValue;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.thymeleaf.context.WebContext;
import org.thymeleaf.spring5.view.ThymeleafViewResolver;
import org.thymeleaf.util.StringUtils;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.util.Date;
import java.util.concurrent.TimeUnit;

@Controller
@RequestMapping("/goods")
public class GoodsController {

    @Autowired
    private IUserService userService;

    @Autowired
    private IGoodsService goodsService;

    @Autowired
    private RedisTemplate redisTemplate;

    @Autowired
    private ThymeleafViewResolver thymeleafViewResolver;



    @RequestMapping(value="/toList",produces = "text/html;charset=utf-8")
    @ResponseBody
    public String toList(Model model, User user,HttpServletRequest request, HttpServletResponse response){

        ValueOperations valueOperations = redisTemplate.opsForValue();
        String html = (String) valueOperations.get("goodsList");
        if (!StringUtils.isEmpty(html)) {
            return html;
        }
//        if(StringUtils.isEmpty(ticket)){
//            return "login";
//        }
////        User user = (User)session.getAttribute(ticket);
//        User user = userService.getUserByCookie(ticket, request, response);
//        if(null == user){
//            return "login";
//        }
        model.addAttribute("user",user);
        model.addAttribute("goodsList",goodsService.findGoodsVo());

        WebContext webContext = new WebContext(request, response, request.getServletContext(), request.getLocale(), model.asMap());
        html = thymeleafViewResolver.getTemplateEngine().process("goodsList", webContext);
        if (!StringUtils.isEmpty(html)) {
            valueOperations.set("goodsList", html, 60, TimeUnit.SECONDS);
        }
        return html;

    }

    @RequestMapping("/detail/{goodsId}")
    @ResponseBody
    public RespBean toDetail(Model model, User user, @PathVariable("goodsId") Long goodsId){

        GoodsVo goodsVo = goodsService.findGoodsVoByGoodsId(goodsId);

        Date startDate = goodsVo.getStartDate();
        Date endDate = goodsVo.getEndDate();
        Date nowDate = new Date();
        //默认秒杀状态为0
        int secKillStatus = 0;
        //秒杀倒计时
        int remainSeconds = 0;

        if(nowDate.before(startDate)){
            //秒杀还未开始，处理倒计时
            remainSeconds = (int)((startDate.getTime()-nowDate.getTime())/1000);

        }else if(nowDate.after(endDate)){
            //秒杀已结束
            secKillStatus = 2;
            remainSeconds = -1;
        }else {
            secKillStatus = 1;
            remainSeconds = 0;
        }

        DetailVo detailVo = new DetailVo();
        detailVo.setUser(user);
        detailVo.setGoodsVo(goodsVo);
        detailVo.setSecKillStatus(secKillStatus);
        detailVo.setRemainSeconds(remainSeconds);

        return RespBean.success(detailVo);

    }



}



//    @RequestMapping(value = "/toDetail/{goodsId}",produces = "text/html;charset=utf-8")
//    @ResponseBody
//    public String toDetail(Model model, User user, @PathVariable("goodsId") Long goodsId,HttpServletRequest request, HttpServletResponse response){
//
//        ValueOperations valueOperations = redisTemplate.opsForValue();
//        //redis中获取页面，如果不为空，直接返回页面
//        String html = (String) valueOperations.get("goodsDetail:" + goodsId);
//        if (!StringUtils.isEmpty(html)) {
//            return html;
//        }
//
//
//        model.addAttribute("user",user);
//        GoodsVo goodsVo = goodsService.findGoodsVoByGoodsId(goodsId);
//
//        Date startDate = goodsVo.getStartDate();
//        Date endDate = goodsVo.getEndDate();
//        Date nowDate = new Date();
//        //默认秒杀状态为0
//        int secKillStatus = 0;
//        //秒杀倒计时
//        int remainSeconds = 0;
//
//
//        if(nowDate.before(startDate)){
//            //秒杀还未开始，处理倒计时
//            remainSeconds = (int)((startDate.getTime()-nowDate.getTime())/1000);
//
//        }else if(nowDate.after(endDate)){
//            //秒杀已结束
//            secKillStatus = 2;
//            remainSeconds = -1;
//        }else {
//            secKillStatus = 1;
//            remainSeconds = 0;
//        }
//        model.addAttribute("remainSeconds",remainSeconds);
//        model.addAttribute("secKillStatus",secKillStatus);
//        model.addAttribute("goods",goodsVo);
//
//        WebContext webContext = new WebContext(request, response, request.getServletContext(), request.getLocale(), model.asMap());
//        html = thymeleafViewResolver.getTemplateEngine().process("goodsDetail", webContext);
//        if (!StringUtils.isEmpty(html)) {
//            valueOperations.set("goodsDetail:" + goodsId, html, 60, TimeUnit.SECONDS);
//        }
//
//        return html;
//
//    }